基于双端行波测距的输电线路单相接地研究  

Study on Transmission Line Single-phase-to-ground Based On Double-ended Traveling Wave

作　　者：张巍 胡雯[2] 段庆权[2] 

机构地区：[1]常德电业局,湖南常德415000 [2]武汉大学电气工程学院,湖北武汉430072

出　　处：《陕西电力》2013年第5期49-52,共4页Shanxi Electric Power

基　　金：中央高校基本科研业务费专项资金资助(201120702020005)

摘　　要：在输电线路发生的各种故障中,以单相接地故障最为常见。将小波变换相关理论应用于行波波头的检测中,并提出了一种新的波速确定方案,利用双端行波测距法,完成了输电线路单相接地故障点的快速准确定位。通过Matlab/Simulink仿真结果表明,该故障定位方法是有效的。The single-phase-to-ground fault is the most common fault occurred in transmission lines. The wavelet transform relation theory is applied in the first traveling wave fauh detection and a new confined wave velocity is provided and double terminal method of traveling wave is used to precisely locate the fault point in the single-phase-to-ground transmission lines. The simulation result show that the algorithm is effective.

关 键 词：行波 小波变换 故障测距 线模分量 波速 

分 类 号：TM727[电气工程—电力系统及自动化]